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Every score has a dated snapshot.

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  3. Llama 3.3 70B vs OpenAI o3-mini

Pairwise benchmark snapshot · Aug 1, 2026

Llama 3.3 70B vs OpenAI o3-mini benchmark

In this head-to-head showdown, OpenAI o3-mini delivers higher overall intelligence and human-preferred responses (Elo 1,560 vs 1,285), while OpenAI o3-mini leads in SWE-bench software engineering benchmarks (78.5%), while Llama 3.3 70B is more budget-friendly at $0.59/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Choose OpenAI o3-mini if your priority is peak reasoning, complex code generation, and top preference Elo. Choose Llama 3.3 70B if you are optimizing for low latency, high throughput, and cost-efficient API deployment.
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Verified Head-to-Head Advantage Breakdown

9 direct benchmark disciplines evaluated across capability, speed, and cost

Llama 3.3 70B (4)OpenAI o3-mini (5)
Llama 3.3 70B
4 of 9 Wins
✓Time to first token✓Output speed✓Input price✓Output price
OpenAI o3-mini
5 of 9 Wins
✓Preference Elo✓LiveBench✓SWE-bench✓GPQA Diamond✓Context window
Meta
Leads 4 of 9 metrics
Llama 3.3 70B

Previous Meta 70B open-weight workhorse.

Elo 1,285$0.59/1M out
OpenAI
Leads 5 of 9 metrics
OpenAI o3-mini

OpenAI cost-efficient reasoning model with adjustable thinking effort and top coding benchmark scores.

o3-miniElo 1,560$4.4/1M out

OpenAI o3-mini Thinking Depth & Cost Scaler

Model B

Simulate accuracy gains vs added response time & token cost

Mode: Medium (Standard)

Reasoning models “think before answering” by generating internal reasoning tokens. Higher effort improves math, coding, and logic accuracy, but increases response delay and token costs.

Thinking Delay
290 ms
Standard speed
Reasoning Depth
~1,500
Internal tokens
Cost / 1k Calls
$8.47
4.5× standard bill
Accuracy Boost
+4.5% accuracy
STEM & SWE-bench
Top Rival Showdowns for Llama 3.3 70B
All Matchups
Compare vs:vs Claude Opus 4.5vs GPT-5vs Gemini 3 Provs Grok 4.6vs DeepSeek V4 Pro
Preference LeaderOpenAI o3-mini Wins

OpenAI o3-mini

Δ 275 Arena Elo pts

Throughput LeaderLlama 3.3 70B Wins

Llama 3.3 70B

140 tok/s

Value per Dollar LeaderLlama 3.3 70B Wins

Llama 3.3 70B

$0.59 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Multi-Dimensional Capability Radar

Leaders Matchup Capability Radar

Comparing top Western standard models with China's leading frontier rival across 6 skill dimensions. Tap any spoke or dot to inspect.

Tap any node to inspect
0–100 %ile
Head-to-Head Comparison

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

Llama 3.3 70B (4)vsOpenAI o3-mini (6)
Llama 3.3 70B: 4W (40%)Overall: OpenAI o3-miniOpenAI o3-mini: 6W (60%)
← Llama 3.3 70BOpenAI o3-mini →
🏆OpenAI o3-mini(5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Benchmark
Llama 3.3 70BvsOpenAI o3-mini
Preference Elo
1,285vs1,560+275
Coding Elo
—vs1,585
SWE-bench
45.1%vs78.5%+33.4%
LiveBench
49.8%vs72.4%+22.6%
GPQA Diamond
65.7%vs87.2%+21.5%
Llama 3.3 70B: 0WOpenAI o3-mini: 5W
🏆Llama 3.3 70B(2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
Llama 3.3 70BvsOpenAI o3-mini
Output speed
140 tok/svs92 tok/s+48 tok/s
Time to first token
160 msvs290 ms+130 ms
Llama 3.3 70B: 2WOpenAI o3-mini: 0W
🏆Llama 3.3 70B(2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
Llama 3.3 70BvsOpenAI o3-mini
Output price
$0.59/1Mvs$4.4/1M+$3.81/1M
Input price
$0.18/1Mvs$1.1/1M+$0.92/1M
Context window
128kvs200k+72k
Llama 3.3 70B: 2WOpenAI o3-mini: 1W

Side-by-Side Benchmark Matrix

Preference Elo+275
Llama 3.3 70B1,285
seed-bootstrap · Aug 1, 2026
OpenAI o3-mini1,560
seed-bootstrap · Aug 1, 2026
Coding Elo
Llama 3.3 70B—
OpenAI o3-mini1,585
seed-bootstrap · Aug 1, 2026
LiveBench+22.6%
Llama 3.3 70B49.8%
seed-bootstrap · Aug 1, 2026
OpenAI o3-mini72.4%
seed-bootstrap · Aug 1, 2026
SWE-bench+33.4%
Llama 3.3 70B45.1%
seed-bootstrap · Aug 1, 2026
OpenAI o3-mini78.5%
seed-bootstrap · Aug 1, 2026
GPQA Diamond+21.5%
Llama 3.3 70B65.7%
seed-bootstrap · Aug 1, 2026
OpenAI o3-mini87.2%
seed-bootstrap · Aug 1, 2026
Time to first token+130 ms
Llama 3.3 70B160 ms
seed-bootstrap · Aug 1, 2026
OpenAI o3-mini290 ms
seed-bootstrap · Aug 1, 2026
Output speed+48 tok/s
Llama 3.3 70B140 tok/s
seed-bootstrap · Aug 1, 2026
OpenAI o3-mini92 tok/s
seed-bootstrap · Aug 1, 2026
Input price+$0.92/1M
Llama 3.3 70B$0.18/1M
seed-bootstrap · Aug 1, 2026
OpenAI o3-mini$1.1/1M
seed-bootstrap · Aug 1, 2026
Output price+$3.81/1M
Llama 3.3 70B$0.59/1M
seed-bootstrap · Aug 1, 2026
OpenAI o3-mini$4.4/1M
seed-bootstrap · Aug 1, 2026
Context window+72k
Llama 3.3 70B128k
seed-bootstrap · Aug 1, 2026
OpenAI o3-mini200k
seed-bootstrap · Aug 1, 2026
BenchmarkLlama 3.3 70BOpenAI o3-miniAdvantage Delta
Preference Elo
1,285
seed-bootstrap · Aug 1, 2026
1,560
seed-bootstrap · Aug 1, 2026
+275
Coding Elo—
1,585
seed-bootstrap · Aug 1, 2026
—
LiveBench
49.8%
seed-bootstrap · Aug 1, 2026
72.4%
seed-bootstrap · Aug 1, 2026
+22.6%
SWE-bench
45.1%
seed-bootstrap · Aug 1, 2026
78.5%
seed-bootstrap · Aug 1, 2026
+33.4%
GPQA Diamond
65.7%
seed-bootstrap · Aug 1, 2026
87.2%
seed-bootstrap · Aug 1, 2026
+21.5%
Time to first token
160 ms
seed-bootstrap · Aug 1, 2026
290 ms
seed-bootstrap · Aug 1, 2026
+130 ms
Output speed
140 tok/s
seed-bootstrap · Aug 1, 2026
92 tok/s
seed-bootstrap · Aug 1, 2026
+48 tok/s
Input price
$0.18/1M
seed-bootstrap · Aug 1, 2026
$1.1/1M
seed-bootstrap · Aug 1, 2026
+$0.92/1M
Output price
$0.59/1M
seed-bootstrap · Aug 1, 2026
$4.4/1M
seed-bootstrap · Aug 1, 2026
+$3.81/1M
Context window
128k
seed-bootstrap · Aug 1, 2026
200k
seed-bootstrap · Aug 1, 2026
+72k
Interactive Simulator (USD)

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save up to 86% with Llama 3.3 70B
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
Llama 3.3 70B$15.15 / mo
In: $6.3Out: $8.85
OpenAI o3-mini$104.50 / mo
In: $38.5Out: $66
Estimated Cost Delta

Llama 3.3 70B is estimated to save $89.35/month ($1,072/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    OpenAI o3-mini:Pick OpenAI o3-mini when repo-level coding accuracy is the constraint.
  • 2
    Llama 3.3 70B:Pick Llama 3.3 70B when you are optimizing output cost.
  • 3
    Llama 3.3 70B:Pick Llama 3.3 70B when time-to-first-token matters more than peak Elo.

Recommended Workload Routing

Repo / coding agentsOpenAI o3-mini

Higher SWE-bench (78.5%).

High-volume chatLlama 3.3 70B

Lower output list price ($0.59/1M).

Voice / low-latency UILlama 3.3 70B

Lower TTFT (160 ms).

Long-document RAGOpenAI o3-mini

Larger window (200k).

Screenshots / visionOpenAI o3-mini

OpenAI o3-mini is the side marked multimodal in the catalog.

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsOpenAI o3-miniHigher SWE-bench (78.5%).
High-volume chatLlama 3.3 70BLower output list price ($0.59/1M).
Voice / low-latency UILlama 3.3 70BLower TTFT (160 ms).
Long-document RAGOpenAI o3-miniLarger window (200k).
Screenshots / visionOpenAI o3-miniOpenAI o3-mini is the side marked multimodal in the catalog.

Related Editorial Dispatches & Benchmark Notes

View all news
launchDec 6, 2024

Llama 3.3 70B stays as the previous Meta 70B workhorse

Dec 2024 instruct 70B. Still a self-host baseline. Llama 4 is the 2026 buy.

Community Sentiment

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK
VS
Meta

Llama 3.3 70B

Elo 1,285
SWE-bench45.1%
Speed (tok/s)140 tok/s
Input / 1M Tokens$0.18/1M
Output / 1M Tokens$0.59/1M
OpenAI

OpenAI o3-mini

Elo 1,560
SWE-bench78.5%
Speed (tok/s)92 tok/s
Input / 1M Tokens$1.1/1M
Output / 1M Tokens$4.4/1M

Frequently Asked Questions

Which is better overall, Llama 3.3 70B or OpenAI o3-mini?
OpenAI o3-mini has the higher preference Elo in our latest snapshot (1,560). “Better” still depends on coding, price, and latency — see the table.
Which is better at coding, Llama 3.3 70B or OpenAI o3-mini?
OpenAI o3-mini leads SWE-bench at 78.5% vs 45.1%. SWE-bench is one harness, not your repo.
Which is cheaper to run in production?
Llama 3.3 70B output tokens are $0.59/1M versus $4.4/1M. Input prices and retry rates still move the real bill.
Which is faster, Llama 3.3 70B or OpenAI o3-mini?
Llama 3.3 70B has the lower time-to-first-token (160 ms vs 290 ms). Tokens/sec is a separate column if you care about long completions.
Which has the larger context window?
OpenAI o3-mini accepts 200k tokens versus 128k.
Can I self-host either model?
Llama 3.3 70B is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.
Are these scores from CompareLLM’s own evals?
No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?
Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Llama 3.3 70B and OpenAI o3-mini Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Related news

  • launch · Dec 6, 2024

    Llama 3.3 70B stays as the previous Meta 70B workhorse

Similar Head-to-Head Comparisons

All Llama 3.3 70B matchups →|All OpenAI o3-mini matchups →
Llama 3.3 70B vs Llama 3.1 70B (previous llama)Llama 3.3 70B vs Llama 4 Maverick (next llama)OpenAI o3-mini vs OpenAI o1-mini (previous gpt-mini)OpenAI o3-mini vs GPT-5 mini (next gpt-mini)GPT-5 vs OpenAI o3-miniLlama 4 Maverick vs OpenAI o3-mini